- Avalanche - Wikipedia
Avalanches can be triggered spontaneously, by factors such as increased precipitation or snowpack weakening, or by external means such as humans, other animals, and earthquakes Primarily composed of flowing snow and air, large avalanches have the capability to capture and move ice, rocks, and trees
- Avalanche | Definition, Causes, Facts | Britannica
Avalanches kill about 150 people a year in North America and Europe Most of those killed are backcountry skiers, climbers, snowshoers, and snowmobilers who accidentally trigger an avalanche and become buried in the snow
- Avalanche - National Geographic Society
In the mountains of the western United States, there are about 100,000 avalanches each year Avalanches kill more than 150 people worldwide each year Most are snowmobilers, skiers, and snowboarders
- Avalanche. org » Avalanche
Avalanches can quickly reach speeds up to 100 mph They vary in destructive power from harmless to large enough to destroy mature forests or flatten villages On average, avalanches kill about 40 people per year in North America
- Avalanches, facts and information | National Geographic
Humans trigger 90 percent of avalanche disasters, with as many as 40 deaths in North America each year Most are climbers, skiers, and snowmobilers Learning about avalanches, and the
- Why do avalanches happen? The science behind the deadly . . .
Avalanches occur when the force of gravity acting on a snowpack is greater than the strength of the bonds keeping the snow in place on a slope This causes a mass of snow to travel downhill from a start zone, finishing where it is deposited, which is called the runout zone
- Avalanche Safety - National Weather Service
Although avalanches can occur on any steep slope given the right conditions, certain times of the year and types of locations are naturally more dangerous While avalanches are sudden, there are typically a number of warning signs you can look for or feel before one occurs
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